Cooling box



Jan. 15, 1924 1,481,170 J. J. WOMPEY COOLING Box Filed May 12. 1922 .$31 INVENTOR. M John J. Wompey s @ATTORNEY Patented dan., 15, 1924.

UNTED STATES JOHN J. WOMPEY, 0F DENVER, COLORADO.

COOLING BOX.

Application led May 12,

T o all whom t may con-cern.:

Be it known that I, JOHN J. WoMPnr, a citizen of the United States,lresidin at Denver, in the county of Denver and btate of Colorado, haveinvented certain new and useful Improvements in Cooling Boxes, of whichthe following is a specification.

This invention relates to cooling boxes for the preservation of foodstuff and its principal object -is to provide a container of thischaracter in which simplicity of construction is combined with strength,durability and racticability in use.

Boxes ma e in accordance with my invention may be used separately in oneor more units or they may be embodied in the construct-ion of sodafountains, refrigerators and other similar structures, it beingunderstood that my invention is -particularly adapted to maintain icecream and other confections in a frozen condition.

It is a further object of my invention to rovide a box of the abovestated type which 1s constructed without the use of nails, rivets,screws or other like fastenin means and which therefore can be produceat a eatly reduced cost of manufacture, an has none of the defects oftencaused by broken screw or rivet heads or leaky joints.

An embodiment of my invention has been illustrated in the accompanyingdrawings in the various views of which like parts. are similarlydesignated and in which- Figure 1 represents a partially sectional topview of a cooling box of my improved construction j Figure 2, a Verticalsection taken on thev line 2 2, Figure l-; and

Figure 8, an enlarged fragmentary section showing the construction ofthe corner joints of the metal shell and lining, constituting adistinctive feature of the invention.

Referring more specically to the drawings, my improved cooling boxconsists of a lining structure 5 of preferably rectangular form, asimilarly shaped shell 6 which constitutes the outer surface of thedevice, and aniintcrposed filling 7 of suit-able insulating materiarrl'he lining and the shell are composed of metal plates which arefastened together at their edges by socalled slip lock joints of achannel-and-iiange type.

Each joint is formed by bending the adjoining edge-portions of each twosheets re- 1922. Serial No. 560,515.

spectively into a channel 8 and a flange 9 which interlock as shown indetail in Figure 3 of the drawings. I

After the flange is placed in the channel, the latter is filled withsolder, and the boxshaped shell and lining are thus made air and watertight. The joints formed as shown and described furthermore reenforcethe structures at their corners, and thereby add to their strength anddurability.

The space between the lining and shell structure is occupied by aninsulating filling which in the construction shown in the drawings, iscomposed o-f a layer of cork 10, a layer of wood 12 and an interposedsheet of insulating paper 18. In the bottom portion of the space, thewood layer is placed lowermost to provide a substantial base for theattachment of the short legs 14 uponA which the structure is supported.y

The' inner and outer members of the box formed and placed as shown,'areconnected at their upper edges by a rectangular plate 15 which coversthe filling and is fastened to the, members by the same joints whichconnect the plates of which the members are composed.

A sheet metal cover 16 filled with wood or other insulating materialfits inside the box at the upper end thereof and 'is flanged for itssupport upon the top plate. The cover has a central opening normallyclosed by a flanged lid 17 which affords ready access to the interior ofthe receptacle.

A drain pipe 18 extending through a Wall of the box connects with anopening in the bottom portion ofthe inner member thereof, for thedischarge of water.

A lock nut 19 screwed on the pipe against the outer surface of thebox,seals the opening through which it extends, against leakage, and thisnut has a downwardly extending outwardly flaring lip 19* which preventsthe melting frosting on the outside of the plilple1 from dripping alongthe surface of the s e Having thus described my invention, what 1 claimand desire to secure by Letters Patent is: l

1. A cooling box of the character described comprising inner and outerboxlcover closing the inner member at the top rial in the of the box,and a filling ofinsulating matespace between the members.

2. A cooling box of the character described comprising inner and outerboxshaped members made of sheet metal, asheet metal plate connectingsaid members at their upper edges, and a fillin in the space between themembers, consisting of layers of wood and cork and interposed sheets ofinsulating paper.

3. A cooling box of the character described comprising inner and outerboxshaped members made of sheet metal and spaced from each other attheir sides and bottoms, a sheet metal plate connecting said members attheir upper edges, a filling of insulating material in the space betweenthe members, including a wooden part in the bottom portion of the space,and legs for the support of the box, fastened to said wooden part.

4. A cooling box of the character described comprising inner and outerboxshaped members made of sheet metal plates connected bychannel-and-flange joints, a sheet metal plate connectin the members attheir upper edges, and a figlling of insulatng material in the spacebetween the memers.

5. A cooling box of the character described comprising inner and outerboxshaped members made of sheet metal plates connected by solderedchannel-and-fiange joints, a sheet metal plate connectin the members attheir upper edges, and a filling of insulating material in the spacebetween the members.

6. A cooling box of the character described compnsing inner and outerboxshaped members made of sheet metal plates Connected by solderedchannel-and-flange joints, a sheet metal spacing plate connected at theupper edges of the members by similar joints, a movable cover closingthe inner member at the top of the box, and a filling of insulatingmaterial in the space between the members.

7. ln a cooling box of the character described, the combination with aninsulated box structure, of a drain pipe extending through an openingthereof, and a nut on the drain pipe sealing the opening against leakageand having an outwardly Haring lip to conduct dripping moisture awayfrom the surface of the box.

In testimony whereof I have affixed my signature.

JOHN J. WOMPEY.

